Fix sampler changer not working.

[blessedcoolant]

Sampler changer is no longer working because the variable was changed in dream.py to support -A ..Fixed that up with this PR. @lstein

[lstein]

Thanks! I see you've accepted the collaboration invite - great! From hereon I'd like to start a process in which there need to be at least two reviews of a PR before merging, with one of the reviews being mine. This was suggested by tildebyte and the recent spate of bug-introducing merges (many my fault) confirms the idea.

[blessedcoolant]

Thanks! I see you've accepted the collaboration invite - great! From hereon I'd like to start a process in which there need to be at least two reviews of a PR before merging, with one of the reviews being mine. This was suggested by tildebyte and the recent spate of bug-introducing merges (many my fault) confirms the idea.

Perfect. I merged two quick bug fixes but from here on I'll make sure there's two reviews for any PR - one being yours. Thank you for the invitation. Looking forward to doing some good stuff here.